Vacuum Interrupters

Vacuum Interrupters (VI) image

Feature

  • Various types and ratings are available for circuit breakers, contactors and load break switches.
  • Compact interrupters are accomplished according to the most suitable design on electrode.
  • Low-surge characteristics are obtained with special contact material, it will last for many operations.
  • The compact and lightweight mechanism will be realized due to the small contact stroke.

Safety

  • The arc extinction is completed in vacuum, hence neither harmful byproduct will be produced, nor hazardous fire generated.
  • The highest reliability and stable performances have been realized under history of three millions production.

Maintenance

  • Less maintenance will be required since the contacts are sealed hermetically in envelope.

Environmental Consideration

  • Neither harmful gases nor byproduct will be generated since the current breaking is performed in the hermetically sealed envelope.
  • All the material and parts are designed under consideration of environmental protection.

Specification

For Circuit Breakers Specification List

For Circuit Breakers Specification List
Type of VI Rated voltage Rated current Rated breaking current Dimensions
Diameter Length
SVB-6H8B 7.2kV 400A 8kA 56mm 134mm
SVB-6J13 3.6/7.2kV 630A 16/12.5kA 67.5mm 134mm
SVB-6J13S1(*1) 3.6/7.2kV 630A 16/12.5kA 67.5mm 134mm
SVB-6M20S(*1) 3.6/7.2kV 1250A 25/20kA 102mm 238mm
SVB-6Q63 7.2kV 3000A 63kA 150.5mm 234mm
SVB-10M25E 12kV 1250A 25kA 94mm 238mm
SVB-10M40E 12kV 1250A 40kA 102mm 238mm
SVB-10P25E 12kV 2000A 25kA 82mm 230mm
SVB-10P40E 12kV 2000A 40kA 102mm 230mm
SVB-10Q40E 12kV 3150A 40kA 116mm 230mm
SVB-10Q50 12kV 3150A 50kA 150.5mm 234mm
SVB-10R40E 12kV 4000A 40kA 150.5mm 247.5mm
SVB-10M25E1(*2) 12kV 1250A 25kA 104mm 238mm
SVB-10M32E1(*2) 12kV 1250A 31.5kA 112mm 238mm
SVB-10M40E1(*2) 12kV 1250A 40kA 112mm 238mm
SVB-10P40E1(*2) 12kV 2000A 40kA 112mm 230mm
SVB-10Q40E1(*2) 12kV 3150A 40kA 126mm 230mm
SVB-10Q50A1(*2) 12kV 3150A 50kA 160.5mm 234mm
SVB-10R40E1(*2) 12kV 4000A 40kA 160.5mm 247.5mm
SVB-20M16 24kV 1250A 16kA 96mm 273mm
SVB-20M25 24kV 1250A 25kA 116mm 273mm
SVB-20P25 24kV 2000A 25kA 130mm 273mm
SVB-30P25 36kV 2000A 25kA 116mm 406mm
SVB-30P25H(*3) 36kV 2000A 25kA 116mm 303mm
  • *1 Low surge type
  • *2 Available to GB standard.
  • *3 Additional external insulation such as usage of SF6 gas is required. Our vacuum interrupters are available to IEC , ANSI , etc.
    Please refer to Toshiba office for the details.

For Contactors Specification List(*4)

For Contactors Specification List(*4)
Type of VI Rated voltage Rated current Interrupting current Rated breaking current Rated making current Dimensions
Diameter Length
SVC-1J6A 1.65kV 630A 6.3kA 5.04kA 6.3kA 56mm 112.5mm
SVC-3G4A1 3.6kV 320A 4.0kA 2.56kA 3.2kA 45.2mm 75mm
SVC-6H4C1 7.2kV 400A 4.0kA 3.2kA 4.0kA 56mm 112.5mm
SVC-6H6A 7.2kV 400A 6.3kA 3.2kA 4.0kA 56mm 112.5mm
SVB-6J13S1 7.2kV 720A 8.0kA 5.76kA 7.2kA 67.5mm 134mm
SVC-10G5S(*5) 12/15kV 320A 5.0/4.0kA 2.56kA 3.2kA 83mm 175mm
SVC-10G5C(*5) 12kV 320A 5.0kA 2.56kA 3.2kA 83mm 175mm
  • *4 All V.I. for contactors except "SVC-10G5C" are low surge type.
  • *5 "SVC-10G5S" is for the motor and the transformer. "SVC-10G5C" is for the capacitor bank.

For Load Break Switches Specification List

For Load Break Switches Specification List
Type of VI Rated voltage Rated current Maximum breaking current Rated A.C. withstand voltage Rated L.Imp. withstand voltage Dimensions
Diameter Length
SVD-6H 7.2/12kV 400A 4.0kA 35kV 85kV 67mm 213mm
SVD-6J 7.2/12kV 630A 4.0kA 35kV 85kV 67mm 213mm
SVD-6HA1 7.2kV 400A 4.0kA 35kV 70kV 61.5mm 180mm
SVD-6JA1 7.2kV 630A 4.0kA 35kV 70kV 61.5mm 180mm
SVD-20J(*6) 24kV 630A - 50kV 95kV 94mm 216mm
SVT-30M 36kV 1250A - 70kV 180kV 150.5mm 303mm
  • *6 Additional external insulation such as usage of SF6 gas is required.
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